About Al Sandilands Al Sandilands is an environmental consultant employed by his own firm, Gray Owl Environmental Inc. His formal learning focused on fisheries and aquatic entomology but, through his long-time interest in birds, he evolved into a wildlife biologist. Books by Al Sandilands Birds of Ontario: Habitat Requirements, Limiting Factors, and Status Volume 2–Nonpasserines: Shorebirds through Woodpeckers by (author) Al Sandilands illustrated by Ross James Birds of Ontario: Habitat Requirements, Limiting Factors, and Status Volume 1–Nonpasserines: Loons through Cranes by (author) Al Sandilands